Mysql 5.7 Linux安装详细步骤

1、下载安装包
http://dev.mysql.com/downloads/mysql/#downloads
推荐下载通用安装方法的TAR包（http://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.12-linux-glibc2.5-x86_64.tar）。

2.检查库文件是否存在，如有删除。

[root@localhost Desktop]$ rpm -qa | grep mysql

mysql-libs-5.1.52-1.el6_0.1.x86_64
[root@localhost ~]# rpm -e mysql-libs-5.1.52.x86_64 –nodeps

[root@localhost ~]#

3.检查mysql组和用户是否存在，如无创建。

[root@localhost ~]# cat /etc/group | grep mysql

mysql:x:490:

[root@localhost ~]# cat /etc/passwd | grep mysql

mysql:x:496:490::/home/mysql:/bin/bash

以上为默认存在的情况，如无，执行添加命令：

[root@localhost ~]#groupadd mysql

[root@localhost ~]#useradd -r -g mysql mysql

//useradd -r参数表示mysql用户是系统用户，不可用于登录系统。

4.解压TAR包，更改所属的组和用户

[root@localhost ~]# cd /usr/local/

[root@localhost local]# tar xvf mysql-5.7.12-linux-glibc2.5-x86_64.tar

[root@localhost local]# ls -l

total 1306432

-rwxr–r–. 1 root root 668866560 Jun 1 15:07 mysql-5.7.12-linux-glibc2.5-x86_64.tar

-rw-r–r–. 1 7161 wheel 638960236 Mar 28 12:54 mysql-5.7.12-linux-glibc2.5-x86_64.tar.gz

-rw-r–r–. 1 7161 wheel 29903372 Mar 28 12:48 mysql-test-5.7.12-linux-glibc2.5-x86_64.tar.gz

[root@localhost local]# tar xvfz mysql-5.7.12-linux-glibc2.5-x86_64.tar.gz

[root@localhost local]# mv mysql-5.7.12-linux-glibc2.5-x86_64 mysql

[root@localhost local]# ls -l

total 1306436

drwxr-xr-x. 2 root root 4096 Dec 4 2009 bin

drwxr-xr-x. 2 root root 4096 Dec 4 2009 etc

drwxr-xr-x. 2 root root 4096 Dec 4 2009 games

drwxr-xr-x. 2 root root 4096 Dec 4 2009 include

drwxr-xr-x. 2 root root 4096 Dec 4 2009 lib

drwxr-xr-x. 3 root root 4096 Dec 2 14:36 lib64

drwxr-xr-x. 2 root root 4096 Dec 4 2009 libexec

drwxr-xr-x. 9 7161 wheel 4096 Mar 28 12:51 mysql

-rwxr–r–. 1 root root 668866560 Jun 1 15:07 mysql-5.7.12-linux-glibc2.5-x86_64.tar

-rw-r–r–. 1 7161 wheel 638960236 Mar 28 12:54 mysql-5.7.12-linux-glibc2.5-x86_64.tar.gz

-rw-r–r–. 1 7161 wheel 29903372 Mar 28 12:48 mysql-test-5.7.12-linux-glibc2.5-x86_64.tar.gz

drwxr-xr-x. 2 root root 4096 Dec 4 2009 sbin

drwxr-xr-x. 6 root root 4096 Dec 2 14:36 share

drwxr-xr-x. 2 root root 4096 Dec 4 2009 src

[root@localhost local]# chown -R mysql mysql/

[root@localhost local]# chgrp -R mysql mysql/
[root@localhost local]# cd mysql/

5.安装和初始化数据库

[root@localhost mysql]# bin/mysql_install_db –user=mysql –basedir=/usr/local/mysql/ –datadir=/usr/local/mysql/data/

2016-06-01 15:23:25 [WARNING] mysql_install_db is deprecated. Please consider switching to mysqld –initialize

2016-06-01 15:23:30 [WARNING] The bootstrap log isn’t empty:

2016-06-01 15:23:30 [WARNING] 2016-06-01T22:23:25.491840Z 0 [Warning] –bootstrap is deprecated. Please consider using –initialize instead

2016-06-01T22:23:25.492256Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)

2016-06-01T22:23:25.492260Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
———————-

如果改变默认安装路径，则需要

1）/etc/my.cnf、/etc/init.d/mysqld中修改

basedir=’/apps/mysql’

datadir=’/apps/mysql/data’

2）创建ln

mkdir -p /usr/local/mysql/bin

ln -s /apps/mysql/bin/mysqld /usr/local/mysql/bin/mysqld

———————-

[root@localhost mysql]#

[root@localhost mysql]# cp -a ./support-files/my-default.cnf /etc/my.cnf

[root@localhost mysql]# cp -a ./support-files/mysql.server /etc/init.d/mysqld

[root@localhost mysql]# cd bin/

[root@localhost bin]# ./mysqld_safe –user=mysql &

[1] 2932

[root@localhost bin]# 2016-06-01T22:27:09.708557Z mysqld_safe Logging to ‘/usr/local/mysql/data/localhost.localdomain.err’.

2016-06-01T22:27:09.854913Z mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql/data

[root@localhost bin]# /etc/init.d/mysqld restart

Shutting down MySQL..2016-06-01T22:27:50.498694Z mysqld_safe mysqld from pid file /usr/local/mysql/data/localhost.localdomain.pid ended

SUCCESS!

Starting MySQL. SUCCESS!

[1]+ Done ./mysqld_safe –user=mysql

[root@localhost bin]#

//设置开机启动

[root@localhost bin]# chkconfig –level 35 mysqld on

[root@localhost bin]#

6.初始化密码
mysql5.7会生成一个初始化密码，而在之前的版本首次登陆不需要登录。

[root@localhost bin]# cat /root/.mysql_secret

# Password set for user ‘root@localhost’ at 2016-06-01 15:23:25

,xxxxxR5H9

[root@localhost bin]# ./mysql -uroot -p

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 2

Server version: 5.7.12

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.

mysql> SET PASSWORD = PASSWORD(‘123456’);

Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

7.添加远程访问权限

mysql> use mysql;

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

Database changed

mysql> update user set host = ‘%’ where user = ‘root’;

Query OK, 1 row affected (0.00 sec)

Rows matched: 1 Changed: 1 Warnings: 0

mysql> select host, user from user;

+———–+———–+

| host | user |

+———–+———–+

| % | root |

| localhost | mysql.sys |

+———–+———–+

重启生效

/etc/init.d/mysqld restart